A step-by-step guide to deploying applications on Kubernetes using Argo CD and the GitOps methodology. Covers installing Argo CD in a cluster, setting up port forwarding, retrieving credentials, registering target clusters, and deploying a Helm-based example app via CLI. Also explains core GitOps principles (declarative infrastructure, pull-based deployment, continuous reconciliation), compares Argo CD with Flux, covers Helm and Kustomize manifest support, multi-environment strategies, production security hardening (RBAC, SSO, signed commits), and common troubleshooting scenarios.
Table of contents
IntroductionKey TakeawaysCore GitOps PrinciplesGitOps vs Traditional CI/CDPrerequisitesStep 1 - Installing Argo CD on Your ClusterStep 2 - Forwarding Ports to Access Argo CDStep 3 - Working with Argo CD from the Command LineStep 4 - Handling Multiple Clusters (Optional)Step 5 - Deploying an Example Application (Optional)Managing Deployments with Helm and KustomizeMulti-Environment GitOps StrategySecurity Best Practices for Argo CDArgo CD vs Flux: Choosing a GitOps ToolTroubleshooting Common IssuesFAQsConclusionSort: